Last Night's Look: Hit or Miss?

Check out the head-turning outfits Ashlee Simpson, Rihanna and more stars were just spotted in! Then decide – fabulous or fashion fail?

EMMY ROSSUM

Also at the Met in N.Y.C., the actress accents her gathered magenta gown with a slim black clutch, a velvety choker (all by Yves Saint Laurent Edition Soir) and Chopard earrings.